Summary

Photograph of a computer diagram entitled "Memory address register". Diagram shows the memory address register for the Atlas computer which was developed in Manchester, England and became operational in 1962. It was the first machine to use virtual memory and was regarded as the fastest computer of its day.

This is one of a set of photographs showing computers, computer components, computer structure diagrams and computer programmimg instructions, probably used as aids in teaching computing subjects. The diagrams and instructions relate to several pioneer models and systems of stored program computers dating back as far as the 1950s and including CSIRAC (originally known as CSIR Mark 1), Cirrus, Atlas, IBM System/360 , CDC 6600 System, and Illiac IV.

Description of Content

Block diagram showing the memory address register for the Atlas computer.

Physical Description

Black and white photographic print of a computing block diagram.

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